<!DOCTYPE html>
<html lang="en" dir="ltr" class="client-nojs">
<head>
<meta charset="UTF-8" />
<title>Aspect Ratio - PanoTools.org Wiki</title>
<meta http-equiv="X-UA-Compatible" content="IE=EDGE" />
<meta name="generator" content="MediaWiki 1.23.6" />






<style media="screen" type="text/css" title="Screen style sheet"> @import url(manual.css); </style>

<style>a:lang(ar),a:lang(kk-arab),a:lang(mzn),a:lang(ps),a:lang(ur){text-decoration:none}
/* cache key: panotools_wiki:resourceloader:filter:minify-css:7:90730a7865ba4b50e0b837e1821ff0a3 */</style>



<!--[if lt IE 7]><style type="text/css">body{behavior:url("/skins/vector/csshover.min.htc")}</style><![endif]--></head>
<body class="mediawiki ltr sitedir-ltr ns-0 ns-subject page-Aspect_Ratio skin-vector action-view vector-animateLayout">
		
		
		<div id="content" class="mw-body" role="main">
			<a id="top"></a>
			
						<h1 id="firstHeading" class="firstHeading" lang="en"><span dir="auto">Aspect Ratio</span></h1>
						<div id="bodyContent">
								<div id="siteSub">From PanoTools.org Wiki</div>
								
												
				<div id="mw-content-text" lang="en" dir="ltr" class="mw-content-ltr"><p><br />
<b>Aspect ratio</b> is the ratio (proportion) between width and height of an image. It doesn't matter whether the image is measured in cm, inch or pixels. However, measurement in digital imaging depends on resolution (and this can be different for width and height) hence always pixel values are used to calculate the aspect ratio.
</p><p>If an image is 200 pixels wide and 100 pixels high it has an aspect ratio of 2:1 as well as if it is 600 pixels wide and 300 pixels high.
</p>
<h2><span class="mw-headline" id="Common_ratios">Common ratios</span></h2>
<ul>
<li> <b>Digital cameras</b> often produce images with a 4:3 ratio, for example: 640×480 (VGA), 800×600, 1600×1200, 2048×1536 (3 megapixel), 2592×1944, 3264×2448, etc.
</li>
<li> The common frame size used with still photography on <b>35 mm film</b> is approximately 36×24 mm, giving an aspect ratio of 3:2.
</li>
<li> Panoramic Images in an <b><a href="Panorama_formats.html#Equirectangular" title="Panorama formats">equirectangular format</a></b> have an aspect ratio of 2:1 to cover 360 degrees horizontally and 180 degrees vertically.
</li>
</ul>




</div>								<div class="printfooter">
				Retrieved from "http://wiki.panotools.org/index.php?title=Aspect_Ratio&amp;oldid=9376<a class="external" href="http://wiki.panotools.org/index.php?title=Aspect_Ratio&amp;oldid=9376">[*]</a>"				</div>
												</div></div></body></html>